Alkaline Battery
| Formula / Notation | Zn + MnO₂ + H₂O → ZnO + Mn(OH)₂ + 2e⁻ |
|---|---|
| Also Known As | Alkaline cell; alkaline manganese battery; Zn-MnO₂ battery; alkaline primary cell; MN-type battery |
What is Alkaline Battery?
An alkaline battery is a type of primary (non-rechargeable) electrochemical cell that uses an alkaline electrolyte (usually potassium hydroxide, KOH) and zinc metal as the anode with manganese dioxide (MnO₂) as the cathode. It delivers higher energy density and longer shelf life compared to traditional zinc-carbon batteries.
Formula & Notation
Other Names / Synonyms: Alkaline cell; alkaline manganese battery; Zn-MnO₂ battery; alkaline primary cell; MN-type battery
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
An alkaline battery is a type of primary (non-rechargeable) electrochemical cell that uses an alkaline electrolyte (usually potassium hydroxide, KOH) and zinc metal as the anode with manganese dioxide (MnO₂) as the cathode. It delivers higher energy density and longer shelf life compared to traditional zinc-carbon batteries.
Portable electronics (remote controls, flashlights, clocks, toys); smoke detectors; cameras; medical devices; widely used as primary cells in everyday consumer devices
Do not recharge, puncture, crush, or incinerate — risk of leakage, rupture, or explosion. Alkaline electrolyte (KOH) is corrosive — battery leakage can cause chemical burns. Dispose of properly; do not mix with household waste in many jurisdictions.
The formula or notation for Alkaline Battery is: Zn + MnO₂ + H₂O → ZnO + Mn(OH)₂ + 2e⁻